The document summarizes four Twitter accounts that were followed: 1) @web20classroom focuses on educational technology and sharing teaching resources like lists of tools and blogs. 2) @E_Sheninger tweets about education issues and reform, endorses the use of technologies like Minecraft and Google Apps in classrooms. 3) @WISEinWV retweets about sex education, healthcare, and preventing HIV/AIDS. 4) @howardtayler is a webcomic artist who discusses his podcast on writing, depression, and occasionally shares witty observations.